Merlin’s beard.

“Ah, go boil yer heads, both of yeh", said Hagrid. “Harry — yer a wizard.”

“Can you believe our luck?” said Ron miserably, bending down to pick up Scabbers…”

“And while I'm sure they're very admirable and brave and all the rest of it, I d…”

“I'm a what?" gasped Harry."A wizard, o' course," said Hagrid, sitting back down…”